GCD of 644, 244, 409 Calculator

Given Input numbers are 644, 244, 409

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 644

List of positive integer divisors of 644 that divides 644 without a remainder.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Divisors of 244

List of positive integer divisors of 244 that divides 244 without a remainder.

1, 2, 4, 61, 122, 244

Divisors of 409

List of positive integer divisors of 409 that divides 409 without a remainder.

1, 409

Greatest Common Divisior

We found the divisors of 644, 244, 409 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 644, 244, 409 is 1.

Therefore, GCD of numbers 644, 244, 409 is 1

Given Input Data is 644, 244, 409

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 644 is 2 x 2 x 7 x 23

Prime Factorization of 244 is 2 x 2 x 61

Prime Factorization of 409 is 409

The above numbers do not have any common prime factor. So GCD is 1

Step1:

Let's calculate the GCD of first two numbers

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(644, 244) = 39284

GCD(644, 244) = ( 644 x 244 ) / 39284

GCD(644, 244) = 157136 / 39284

GCD(644, 244) = 4

Step2:

Here we consider the GCD from the above i.e. 4 as first number and the next as 409

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(4, 409) = 1636

GCD(4, 409) = ( 4 x 409 ) / 1636

GCD(4, 409) = 1636 / 1636

GCD(4, 409) = 1

GCD of 644, 244, 409 is 1

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1. What is the GCD of 644, 244, 409?

GCD of 644, 244, 409 is 1

2. Where do I get the detailed procedure to find GCD of 644, 244, 409?

You can find a detailed procedure to find GCD of 644, 244, 409 on our page.

3. How to find GCD of 644, 244, 409 on a calculator?

You can find the GCD of 644, 244, 409 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.